Question

question 7 of 10
which list places the three types of radiation in order from the one that is most difficult to block to the one that is easiest to block?
a. gamma, beta, alpha
b. alpha, gamma, beta
c. gamma, alpha, beta
d. alpha, beta, gamma

Explanation:

Gamma radiation is highly penetrating and difficult to block as it consists of high - energy photons. Beta particles are more easily blocked than gamma rays as they are electrons or positrons with less energy compared to gamma photons. Alpha particles are the easiest to block since they are large, heavy, and slow - moving helium nuclei and can be stopped by a sheet of paper or the outer layer of human skin.

Answer:

A. Gamma, beta, alpha